Sierra Circle Weather Forecast

    • 65
    • 80

    Increasing Clouds

    • 42
    • 78

    Chance Rain Showers

    • 38
    • 51

    Breezy

    • 34
    • 53

    Partly Sunny

    • 41
    • 60

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

Today 27 Dec Hays

Cloudy. Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 27 Dec Hays

Partly cloudy with a chance of Showers in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Breezy and much cooler. Less humid with Lows around 40. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming north 20 to 25 Mph with Gusts up to 45 Mph after midnight. Chance of rain 40 percent.

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Sierra Circle Temperature Statistics

December Temperature

San Marcos, San Marcos Municipal Airport (5 miles)

  • Lowest 9 December, 2025

    28 °F

  • Average December

    56.4 °F

  • Highest 24 December, 2025

    81 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (5 miles)

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  • Average Low 2020–2025

    59.5 °F

  • Average 2020–2025

    70.2 °F

  • Average High 2020–2025

    81.9 °F
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